Rotary cutter leaving half cut grass on the left side of the cutter

Why does my 60" rotary cutter leave half cut grass on the left side of the cut and a nice cut on the right half of the cut? I am running at 540 at the PTO and I have slowed the tractor down to third gear. The cutter is level and new blades are on.

Re: Rotary cutter leaving half cut grass on the left side of the cutter

You are right, I was thinking about it more and had to come back.

I was thinking about the cutter turning ccw and the mower moving forward and the right side technically travelling faster.... I don't know why I was considering the tractor travelling speed having any effect on the cutting action- sorry, I am tired.

Re: Rotary cutter leaving half cut grass on the left side of the cutter

Re: Rotary cutter leaving half cut grass on the left side of the cutter

ARE YOU SURE THAT THE LEFT SIDE BLADE IS TURNING? PERHAPS THERE IS A SHEARED DRIVE KEY OR A BROKEN SHEAR BOLT THAT WILL ALLOW THE PULLEY ON THE LEFT SIDE TO SPIN ON THE PULLEY SHAFT, BUT WILL NOT DRIVE THE BLADE.

Re: Rotary cutter leaving half cut grass on the left side of the cutter

Originally Posted by eeisch

ARE YOU SURE THAT THE LEFT SIDE BLADE IS TURNING? PERHAPS THERE IS A SHEARED DRIVE KEY OR A BROKEN SHEAR BOLT THAT WILL ALLOW THE PULLEY ON THE LEFT SIDE TO SPIN ON THE PULLEY SHAFT, BUT WILL NOT DRIVE THE BLADE.

Or did the blade just come loose and is spinning on the shaft giving you a partial cut?